| # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/pwm/argon40,fan-hat.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Argon40 Fan HAT PWM controller |
| |
| maintainers: |
| - Marek Vasut <marek.vasut+renesas@mailbox.org> |
| |
| description: |
| The trivial PWM on Argon40 Fan HAT, which is a RaspberryPi blower fan |
| hat which can be controlled over I2C, generates a fixed 30 kHz period |
| PWM signal with configurable 0..100% duty cycle to control the fan |
| speed. |
| |
| allOf: |
| - $ref: pwm.yaml# |
| |
| properties: |
| compatible: |
| const: argon40,fan-hat |
| |
| reg: |
| maxItems: 1 |
| |
| "#pwm-cells": |
| const: 3 |
| |
| required: |
| - compatible |
| - reg |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| i2c { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| pwm@1a { |
| compatible = "argon40,fan-hat"; |
| reg = <0x1a>; |
| #pwm-cells = <3>; |
| }; |
| }; |
